So, I have been in search of some of the easiest methods to accept crypto payments as an ecommerce merchant. I started off with sharing my wallet address with clients who were interested in making payments in crypto. But now as my client base has increased, keeping track of the payments has become difficult. I have more customers who are willing to pay in cryptocurrencies. So, I decided to search for an alternative way and came across these two methods that I have mentioned below and the payment gateways that I found reliable:

API integration

This is one of the easiest methods to accept crypto payments as a business. You can easily integrate the crypto payment gateway to your website and clients will be able to make payments using that gateway. I will also mention some of the low fees merchant account service providers who provide API integration solutions to their users to accept crypto payments on their business website.

CapitalWallet

Regulated and registered with FIU
Lower fees of just 0.5% per transactions
Lets you secure your wallet with multiple signatures and 2-FA

Coingate

Secure and easy API integration
Only 1% fees per transaction
Also provide Plugins and payment buttons
 
Plugins and payment buttons

Plugins and payment buttons are also an option you can consider for accepting crypto payments. Some of the popular gateways that provide installable plugins and payment buttons are listed below.

Cryptopay - 1% fees (also provide API integration)
Coinspaid - 0.8% fees
Spicepay- 1% fees

So, these are the two methods that I found the best and easiest but I am open to know about more methods that can be used to accept crypto payments.